Re: [SeaBIOS] USB timeout on ALIX.2C2 (CS5536)

[Евгени Димитров]

On Fri, Jan 6, 2017 at 4:46 PM, Kevin O'Connor  wrote:
> On Fri, Jan 06, 2017 at 09:22:46AM +0200, Евгени Димитров wrote:
> > On Thu, Jan 5, 2017 at 6:29 PM, Kevin O'Connor
>
> wrote:
> > > On Thu, Jan 05, 2017 at 09:44:14AM +0200, Евгени Димитров wrote:
> > > > On Wed, Jan 4, 2017 at 4:52 PM, Kevin O'Connor
> > >
> > > wrote:
> > > > > On Wed, Jan 04, 2017 at 03:57:33PM +0200, Евгени Димитров wrote:
> > > > > > Hi,
> > > > > >
> > > > > > I'm testing Coreboot with SeaBIOS as payload on my old Alix.2C2.
>
> When
> > > > > > trying to boot from an USB device I get the following error:
> > > > > >
> > > > > > Searching bootorder for: /pci@i0cf8/usb@f,5/storage@2/*@0/*@0,0
> > > > > > Searching bootorder for: /pci@i0cf8/usb@f,5/usb-*@2
> > > > > > ehci_send_pipe qh=0x000ecf00 dir=0 data=0x00006cf9 size=31
> > > > > > ehci_send_pipe qh=0x000ecf80 dir=128 data=0x00006dc4 size=36
> > > > > > ehci_send_pipe qh=0x000ecf80 dir=128 data=0x00006cec size=13
> > > > > > WARNING - Timeout at ehci_wait_td:516!
> > > > > > ehci pipe=0x000ecf80 cur=00000000 tok=00000000 next=6b40
> > >
> > > td=0x00006b40
> > > > > > status=d0d80
> > > > > > USB transmission failed
> > > > > > Unable to configure USB MSC drive.
> > > > > > phys_free f6030 (detail=0x0f7688a0)
> > > > > > Unable to configure USB MSC device.
> > > > >
> > > > > Did you disable threads in seabios (either via the kconfig option
>
> or
> > > > > via the /etc/threads runtime option)?  It's not recommended to
>
> disable
> > > > > threads, and the USB code is less capable of handling timeouts when
> > > > > threads are disabled.  Can you retry (and send the log) with
>
> threads
> > > > > enabled.
> > > > >
> > > > > If that fails, can you also try disabling CONFIG_USB_EHCI in
>
> Kconfig
> > > > > and send that log as well.
> > > >
> > > > I get the same error with threads enabled. Disabling ehci did not
>
> help
> > > > either. Logs are attached as requested.
> > >
> > > It looks like the USB device is successfully identified and
> > > configured, but when sending the "inquiry" command to the drive behind
> > > the USB interface the connection halts.  Not sure why that would be -
> > > it could be something with the controller, but it's odd that it
> > > happens with both the ohci and ehci controllers.
> > >
> > > If you boot to linux (using some other bootable device) what does
> > > 'lsusb' and 'lsusb -t' report?  Have you tested with a different type
> > > of usb drive?
> > >
> > > -Kevin
> >
> > USB works on Linux. And yes I have tried a bunch of USB drives. All of
>
> them
> > failed with the same error.
> >
> > root@OpenWrt:/# lsusb
> > Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> > Bus 001 Device 002: ID 0011:7788
> > Bus 001 Device 003: ID 058f:6377 Alcor Micro Corp. Multimedia Card Reader
> > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> > root@OpenWrt:/# lsusb -t
> > /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ohci-pci/4p, 12M
> > /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/4p, 480M
> >     |__ Port 1: Dev 3, If 0, Class=Mass Storage, Driver=, 480M
> >     |__ Port 2: Dev 2, If 0, Class=Mass Storage, Driver=, 480M
>
> Are you trying to boot from the "Multimedia Card Reader" or from a
> regular USB flash drive?  If you're not booting from the card reader,
> does the patch below help?
>
> -Kevin
>
> --- a/src/hw/usb-msc.c
> +++ b/src/hw/usb-msc.c
> @@ -203,6 +203,8 @@ usb_msc_setup(struct usbdevice_s *usbdev)
>          goto fail;
>  int maxlun = usb_msc_maxlun(usbdev->defpipe);
> if (maxlun)
>    goto fail;
> int lun, pipesused = 0;
>    for (lun = 0; lun < maxlun + 1; lun++) {
>        int ret = usb_msc_lun_setup(inpipe, outpipe, usbdev, lun);

I was trying to boot from whatever USB devices I can get my hands on.
Ultimately my goal is to boot from a regular flash drive. The patch doesn't
help.